/* ==========================================================================
   Importação de Tipografia Acadêmica/Minimalista
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;700&display=swap');

/* ==========================================================================
   Configurações Gerais e Paleta Oficial UEMG (Design Escandinavo Amplo)
   ========================================================================== */
:root {
    --primary-color: #004b82;       /* Azul Oficial UEMG */
    --dark-color: #24292F;          /* Cinza Escuro de Alta Legibilidade */
    --light-bg: #F8F9FA;            /* Cinza Claro Neutro */
    --card-bg: #ffffff;             /* Branco Puro */
    --border-color: #E1E4E8;        /* Linha sutil de separação */
    --accent-color: #a6192e;        /* Vermelho Oficial UEMG */
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--light-bg);
    color: var(--dark-color);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* Container otimizado para se expandir proporcionalmente em Monitores Widescreen */
.container {
    width: 92%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
}

/* ==========================================================================
   Header e Seção Hero
   ========================================================================== */
.site-header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 25px 0;
}

.header-grid {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.header-logo,
.header-logo-right {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

.header-logo {
    justify-content: flex-start;
}

.header-logo-right {
    justify-content: flex-end;
}

.logo-universidade {
    max-width: 220px;
    height: auto;
    display: block;
}

.hero-section {
    flex: 1;
}

.hero-section h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 10px 0;
    letter-spacing: -0.5px;
}

.hero-description {
    font-size: 1.05rem;
    color: #57606A;
    font-weight: 300;
    margin: 0;
}

/* ==========================================================================
   Seção de Apresentação
   ========================================================================== */
.presentation-section {
    background: transparent;
    padding: 50px 0 30px 0;
    margin: 0;
}

.presentation-section p {
    font-size: 1.1rem;
    color: var(--dark-color);
    font-weight: 400;
    margin: 20px 0 0 0;
    text-align: justify;
}

.section-title {
    color: var(--primary-color);
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   Painel de Informações Institucionais
   ========================================================================== */
.painel-institucional {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    padding: 0;
    margin: 0 0 50px 0;
}

.card-institucional {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease-in-out;
}

.card-institucional:hover {
    border-color: var(--primary-color);
    background-color: #F6F8FA;
    transform: translateY(-2px);
}

.card-institucional .icon-wrapper {
    color: var(--primary-color);
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    margin-top: 2px;
    transition: color 0.2s ease;
}

.card-institucional .icon-wrapper svg {
    width: 100%;
    height: 100%;
}

.card-institucional:hover .icon-wrapper {
    color: var(--accent-color);
}

.card-content h3 {
    margin: 0 0 6px 0;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 700;
}

.card-content p {
    margin: 0;
    color: #57606A;
    font-size: 0.9rem;
    line-height: 1.5;
    text-align: justify;
}

/* ==========================================================================
   Seção: Destaque Especial do Canal do YouTube
   ========================================================================== */
.youtube-highlight-section {
    background-color: #F1F4F8;
    border-left: 4px solid var(--primary-color);
    padding: 40px;
    margin: 0 0 50px 0;
}

.youtube-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.youtube-info p {
    font-size: 0.95rem;
    color: #57606A;
    margin: 20px 0 25px 0;
    text-align: justify;
}

.main-youtube-link {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
    display: inline-block;
}

.main-youtube-link:hover {
    color: var(--accent-color);
}

.youtube-video-side .video-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background-color: #000;
    border: 1px solid var(--border-color);
}

.youtube-video-side .video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ==========================================================================
   Seção: Ferramentas de Análise & Pesquisa
   ========================================================================== */
.tools-section {
    background: transparent;
    padding: 50px 0; 
    border-top: 1px solid var(--border-color);
    border-bottom: 2px solid var(--primary-color);
    margin: 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    padding-top: 30px;
}

.card-ferramenta {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tool-header {
    margin-bottom: 15px;
}

.tool-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--accent-color);
    display: inline-block;
    margin-bottom: 5px;
}

.card-ferramenta h3 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.3rem;
    font-weight: 700;
}

.card-ferramenta p {
    margin: 0 0 25px 0;
    color: #57606A;
    font-size: 0.92rem;
    line-height: 1.6;
    text-align: justify;
}

.tool-link {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    align-self: flex-start;
    transition: color 0.2s ease;
}

.tool-link:hover {
    color: var(--accent-color);
}

/* ==========================================================================
   Grid de Experimentos
   ========================================================================== */
.features-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: 1fr;
    gap: 30px;
    padding: 30px 0 60px 0;
    margin: 0;
}

.features-section article {
    background: var(--card-bg);
    padding: 35px 30px;
    border-radius: 0px;
    border: none;
    border-left: 3px solid var(--border-color);
    box-shadow: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    transition: border-left-color 0.2s ease, background-color 0.2s ease;
}

.features-section article:hover {
    border-left-color: var(--primary-color);
    background-color: #F6F8FA;
}

.features-section h3 {
    margin: 0 0 12px 0;
    color: var(--primary-color);
    font-size: 1.15rem;
    font-weight: 700;
}

.features-section p {
    margin: 0 0 25px 0;
    color: #57606A;
    font-size: 0.92rem;
    font-weight: 400;
    text-align: justify;
}

/* ==========================================================================
   Etiquetas (Badges) e Elementos de Interação
   ========================================================================== */
.badge {
    background-color: transparent;
    color: var(--accent-color);
    padding: 0;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 0;
    align-self: flex-start;
}

.secondary-button {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 10px 20px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 0px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.secondary-button:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ==========================================================================
   Rodapé Institucional
   ========================================================================== */
.site-footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--card-bg);
    padding: 30px 0;
    font-size: 0.85rem;
    color: #57606A;
    text-align: center;
}

/* ==========================================================================
   ESTILO DA SEÇÃO DINÂMICA DA EQUIPE DE PROJETO
   ========================================================================== */
.membros-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding-top: 30px;
}

.membro-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--border-color);
    padding: 30px;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 25px;
}

.membro-foto-wrapper {
    flex-shrink: 0;
}

.membro-foto {
    width: 140px;
    height: 185px;
    border-radius: 12px;
    object-fit: cover;
    object-position: center top;
    border: 1px solid var(--border-color);
    background-color: var(--light-bg);
    display: block;
}

.membro-info {
    flex-grow: 1;
}

.membro-info h3 {
    margin: 0 0 5px 0;
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 700;
}

.membro-cargo {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.membro-info p {
    font-size: 0.92rem;
    color: #57606A;
    line-height: 1.6;
    margin: 0 0 15px 0;
    text-align: justify;
}

.features-section > a {
    display: flex;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.features-section > a article {
    width: 100%;
    height: 100%;
}

/* ==========================================================================
   Novas Caixas de Seleção e Efeito Retrátil da Coleção
   ========================================================================== */
.secao-selecao-principal {
    margin: 0 0 40px 0;
    width: 100%;
}

.grade-selecao {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    width: 100%;
}

.card-selecao-trigger {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    padding: 40px 30px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 180px;
}

.card-selecao-trigger:hover {
    border-left-color: var(--accent-color);
    background-color: #F6F8FA;
    transform: translateY(-2px);
}

.card-selecao-conteudo h2 {
    margin: 0 0 10px 0;
    font-size: 1.3rem;
}

.card-selecao-conteudo p {
    margin: 0 0 15px 0;
    color: #57606A;
    font-size: 0.95rem;
    line-height: 1.5;
}

.seta-indicadora {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: transform 0.3s ease;
    display: inline-block;
}

.card-selecao-trigger:hover .seta-indicadora {
    color: var(--accent-color);
    transform: translateY(5px);
}

#link-guia-tecnico:hover .seta-indicadora {
    transform: translateX(5px);
}

/* Mecanismo Fluido de Revelação */
.conteudo-colecao-retratil {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, padding 0.4s ease;
}

.conteudo-colecao-retratil.ativa {
    max-height: 2000px;
    opacity: 1;
    padding-top: 20px;
}

/* Estilo do container do PDF */
.pdf-container-wrapper {
    position: relative;
    width: 100%;
    height: 75vh;
    border: 1px solid var(--border-color);
    background-color: var(--light-bg);
}

.pdf-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Container de conteúdo injetado dinamicamente */
#container-experimento {
    padding-top: 40px;
}

/* ==========================================================================
   ADAPTAÇÃO RESPONSIVA PONTUAL
   ========================================================================== */

@media (max-width: 992px) {
    .site-header {
        padding: 15px 0;
    }

    /* Agrupa os logos no topo lado a lado para economizar espaço vertical */
    .header-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-areas: 
            "logo-left logo-right"
            "hero hero";
        gap: 15px;
        align-items: center;
    }

    .header-logo {
        grid-area: logo-left;
        justify-content: flex-start;
    }

    .header-logo-right {
        grid-area: logo-right;
        justify-content: flex-end;
    }

    .hero-section {
        grid-area: hero;
        text-align: center;
    }

    .logo-universidade {
        max-width: 130px;
    }

    .youtube-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .container {
        width: 100%;
        padding-left: 16px;
        padding-right: 16px;
    }

    .site-header {
        padding: 12px 0;
    }

    /* Esconde a descrição secundária do cabeçalho em telas pequenas */
    .hero-description {
        display: none;
    }

    .hero-section h1 {
        font-size: 1.15rem;
        margin-bottom: 5px;
    }

    .header-nav {
        margin-top: 10px;
        padding-top: 10px;
    }

    .header-nav ul {
        gap: 8px 12px;
    }

    .header-nav a {
        font-size: 0.82rem;
    }

    .header-nav li:not(:last-child)::after {
        display: none;
    }

    .presentation-section {
        padding: 20px 0 15px 0;
    }

    .presentation-section p,
    .card-content p,
    .youtube-info p,
    .card-ferramenta p,
    .features-section p,
    .membro-info p {
        text-align: left;
    }

    .painel-institucional,
    .tools-grid,
    .features-section,
    .grade-selecao {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .youtube-highlight-section {
        padding: 20px 15px;
    }

    .card-institucional,
    .card-ferramenta,
    .features-section article,
    .card-selecao-trigger {
        padding: 20px;
    }

    .membro-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px;
    }

    .membro-foto {
        width: 130px;
        height: 170px;
    }

    .pdf-container-wrapper {
        height: 60vh;
    }
}

@media (max-width: 480px) {
    .hero-section h1 {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .card-selecao-trigger {
        min-height: auto;
        padding: 25px 20px;
    }
}

/* ==========================================================================
   Estilização dos Logos de Apoio no Rodapé
   ========================================================================== */
.rodape-apoio {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.rodape-apoio span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark-color);
}

.logo-apoio {
    max-height: 80px;
    width: auto;
    object-fit: contain;
}

/* ==========================================================================
   Estilização do Menu Horizontal do Cabeçalho (Centralizado & Elegante)
   ========================================================================== */
.header-nav {
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.header-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center; /* Centraliza todos os itens do menu */
    align-items: center;
    gap: 12px 24px;         /* Espaçamento proporcional entre os links */
}

.header-nav li {
    display: inline-flex;
    align-items: center;
}

/* Adiciona um separador discreto (•) entre os itens do menu */
.header-nav li:not(:last-child)::after {
    content: "•";
    margin-left: 24px;
    color: #ccc;
    font-size: 0.8rem;
    pointer-events: none;
}

.header-nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    padding: 4px 0;
    position: relative;
    transition: color 0.25s ease;
}

/* Linha animada ao passar o mouse */
.header-nav a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--accent-color);
    transition: all 0.25s ease-in-out;
    transform: translateX(-50%);
}

.header-nav a:hover {
    color: var(--accent-color);
}

.header-nav a:hover::after {
    width: 100%;
}

@media (max-width: 768px) {
    .header-nav li:not(:last-child)::after {
        display: none; /* Oculta as bolinhas no celular para um ajuste limpo */
    }
}